Paul McCLARTY
In this presentation, I describe some recent theoretical and experimental work on the band topology of magnetic excitations concentrating on (i) the role of symmetries in generating a variety of topological magnon band structures (ii) the role of nonHermitian topology in spontaneous magnon decay and (iii) neutron scattering signatures of topological magnon bands in both intensity and linewidth.
[1] S. Shivam, R. Coldea, R. Moessner, P. McClarty arXiv:1712.08535[2] M. Elliot, P. McClarty, D. Prabhakaran, R, Johnson, H, Walker, P. Manuel, R. Coldea, Nature Comms. 12 3936 (2021)
[3] A. Scheie, P. Laurell, P. McClarty, G. E. Granroth, M. B. Stone, R. Moessner, S. E. Nagler Phys. Rev. Lett. 128 097201 (2022)
[4] P. McClarty, J. G. Rau, Phys. Rev. B 100, 100405(R) (2019)
[5] A. Corticelli, R. Moessner, P. McClarty Phys. Rev. B 105 064432 (2022)
[6] A. Corticelli, R. Moessner, P. McClarty arXiv:2203.06678